Optimize functions on a second thread.

src/hydrogen-instructions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 206 matching lines @@
 
 #define DECLARE_CONCRETE_INSTRUCTION(type)                        \
   virtual LInstruction* CompileToLithium(LChunkBuilder* builder); \
   static H##type* cast(HValue* value) {                           \
     ASSERT(value->Is##type());                                    \
     return reinterpret_cast<H##type*>(value);                     \
   }                                                               \
   virtual Opcode opcode() const { return HValue::k##type; }
 
 
+#ifdef DEBUG
+#define ASSERT_ALLOCATION_DISABLED do {                                    \
+    if (FLAG_parallel_recompilation) {                                     \
+      OptimizingCompilerThread* thread =                                   \
+        ISOLATE->optimizing_compiler_thread();                             \
+      ASSERT(thread->IsOptimizerThread() || !HEAP->IsAllocationAllowed()); \
+    } else {                                                               \
+      ASSERT(!HEAP->IsAllocationAllowed());                                \
+    }                                                                      \
+  } while (0)
+#else
+#define ASSERT_ALLOCATION_DISABLED do {} while (0)
+#endif
+
 class Range: public ZoneObject {
  public:
   Range()
       : lower_(kMinInt),
         upper_(kMaxInt),
         next_(NULL),
         can_be_minus_zero_(false) { }
 
   Range(int32_t lower, int32_t upper)
       : lower_(lower),
@@ skipping 2045 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(CheckPrototypeMaps)
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual intptr_t Hashcode() {
-    ASSERT(!HEAP->IsAllocationAllowed());
+    ASSERT_ALLOCATION_DISABLED;
     intptr_t hash = reinterpret_cast<intptr_t>(*prototype());
     hash = 17 * hash + reinterpret_cast<intptr_t>(*holder());
     return hash;
   }
 
  protected:
   virtual bool DataEquals(HValue* other) {
     HCheckPrototypeMaps* b = HCheckPrototypeMaps::cast(other);
     return prototype_.is_identical_to(b->prototype()) &&
         holder_.is_identical_to(b->holder());
@@ skipping 225 matching lines @@
     ASSERT(HasNumberValue());
     // Irrespective of whether a numeric HConstant can be safely
     // represented as an int32, we store the (in some cases lossy)
     // representation of the number in int32_value_.
     return int32_value_;
   }
 
   bool ToBoolean();
 
   virtual intptr_t Hashcode() {
-    ASSERT(!HEAP->allow_allocation(false));
+    ASSERT_ALLOCATION_DISABLED;
     intptr_t hash;
 
     if (has_int32_value_) {
       hash = static_cast<intptr_t>(int32_value_);
     } else if (has_double_value_) {
       hash = static_cast<intptr_t>(BitCast<int64_t>(double_value_));
     } else {
       ASSERT(!handle_.is_null());
       hash = reinterpret_cast<intptr_t>(*handle_);
     }
@@ skipping 1084 matching lines @@
     SetFlag(kUseGVN);
     SetGVNFlag(kDependsOnGlobalVars);
   }
 
   Handle<JSGlobalPropertyCell>  cell() const { return cell_; }
   bool RequiresHoleCheck();
 
   virtual void PrintDataTo(StringStream* stream);
 
   virtual intptr_t Hashcode() {
-    ASSERT(!HEAP->allow_allocation(false));
+    ASSERT_ALLOCATION_DISABLED;
     return reinterpret_cast<intptr_t>(*cell_);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::None();
   }
 
   DECLARE_CONCRETE_INSTRUCTION(LoadGlobalCell)
 
  protected:
@@ skipping 1496 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(LoadFieldByIndex);
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_